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From the PC game Counter-Strike, where C1 will send a radio message 'Roger that'.

Now used in real life.
Geek 1: Man this new monitor rocks!

Geek 2: C1 on that.
C1 by Chris January 8, 2004
Words you can keep
"afirmative" - a phrase in the game counter-strike
Rh0x (DEAD): man that LyNx kid is a faggot
Sh0cK(DEAD): c1
c1 by shock March 23, 2003
Related Words
c1 c1g4r3tt3_ C10H15N C130 C10 c12 C16 c17h21no4 c1nnam0n.girl C1 bois
A cs-ers counter-strike way of saying "Affirmative". If you press c 1 in Counter-strike it`ll say affirmative.
someone: "Need backup"
lilgirl: "c1"
c1 by lilgirl August 12, 2003
The definition of C1 is a real steppa.
C1 packed too many yutes!
C1 by urlocaldemons April 20, 2021
Small single engined airplane made by Cessna. Generally refers to the Cessna 172, the most highly produced airplane in the world.
Bob: We flew down to LA in the C1. It was so fly.

Edith: That's ballin' bro.

Bob: They make a Gulfstream do 360s for 5 minutes while we were in the pattern to land.

Edith: That bitch in the G6 must have been way pissed.

Bob: Hella pro.
c1 by c1pilot August 5, 2011
Sexy cunt with good dick
C1 came up to me.

And I got wet instantly 😫
C1 by Xamaz February 18, 2022

C1 Settings 

When your bestfriend list On snapchat is full of the opposite gender it becomes C1 settings. You basically are a player But it’s not by choice and you Everyone knows it.
Man 1: You chat to bare girls
Man 2: yeah it’s C1 settings
Man 1: aha peakkk😂
C1 Settings by Quit_Dont July 29, 2020
More from Urban Dictionary
West Midlands slang word for rockers, bikers, greasers etc. In the late 1980s it was used by the UK music press to refer to a specific scene centered around the bands Pop Will Eat Itself and Crazyhead. The term never found favour with readers of 'the inkies' (Sounds, Melody Maker and the still extant NME) and was soon dropped. Now often used in predominantly working-class areas of the midlands and the north to mean someone who listens to rock-derived music and/or dresses in a manner that suggests they affiliate themselves with rock music of some kind.
Some grebo passed with Sabbath playing on his stereo.
The Poppies are at no. 17? God, a grebo band in the charts!
They're playing nu-metal now, bloody grebos!
grebo by cactuscat September 15, 2006
Word of the Day on August 24, 2026
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